From: Quinn Tran Date: Tue, 11 Sep 2018 17:18:19 +0000 (-0700) Subject: scsi: qla2xxx: Fix early srb free on abort X-Git-Tag: rel_imx_4.19.35_1.1.0~8657 X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=c97c9cfb4d80f8cea22feab370d80d7b403e878b;p=linux.git scsi: qla2xxx: Fix early srb free on abort commit 8235f4b5aeba868739f6e12a51ad92689e3f78ef upstream. Task abort can take 2 paths: 1) serial/synchronous abort where the calling thread will put to sleep, wait for completion and free cmd resource. 2) async abort where the cmd free will be free by the completion thread. For path 2, driver is freeing the SRB too early. Fixes: f6145e86d21f ("scsi: qla2xxx: Fix race between switch cmd completion and timeout") Cc: stable@vger.kernel.org # 4.19 Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 4686fb5f26aa..0d86044e69eb 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1788,6 +1788,8 @@ qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait) wait_for_completion(&abt_iocb->u.abt.comp); rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ? QLA_SUCCESS : QLA_FUNCTION_FAILED; + } else { + goto done; } done_free_sp: